FATIGUE BEHAVIOUR OF STRUCTURAL COMPONENTS AT THRESHOLD

Document Type : Original Article

Authors

1 Dept. of Structural Engineering,Cairo Univ.Giza, Egypt.

2 King Abdulaziz Univ. Jeddah, Saudi Arabia.

Abstract

The present paper investigates the influence of several variables on the fatigue behaviour of cracks at therashold. Variables considered are crack size, mean stress, crack closure and type of loading. Several fracture mechanics models are developed to simulate the effects of such parameters on the fatigue therashold. The accuracy of these models were tested using wide range of experimental data. The present work plays an important rule in design against long life fatigue of structural components.